STECIĄG, M.; KARMOWSKA, A. LINGUA MATERNA, LINGUA RECEPTIVA, LINGUA FRANCA, MULTILINGUA FRANCA? THE LINGUASCAPE OF THE POLISH-CZECH BORDERLAND FROM THE PERSPECTIVE OF SUSTAINABLE MULTILINGUALISM. Sustainable Multilingualism / Darnioji daugiakalbystė, [S. l.], n. 16, p. 21–38, 2023. DOI: 10.2478/sm-2020-0002. Disponível em: https://ejournals.vdu.lt/index.php/SM/article/view/4327. Acesso em: 5 feb. 2025.